:root{color-scheme:dark;--bg:#0c131b;--panel:#141f2b;--panel-soft:#101a25;--line:#293748;--text:#e8e8e0;--muted:#9faebe;--accent:#d9bd87;--accent-soft:#a28c66;--green:#99c9ae;--danger:#f3a9a2;font-family:Inter,"Segoe UI","Microsoft YaHei",sans-serif;font-size:15px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:radial-gradient(ellipse at 65% 0,#1b2b3a 0,transparent 52%),var(--bg);color:var(--text);line-height:1.75}button,input,select{font:inherit}button,a,input,select,summary{-webkit-tap-highlight-color:transparent}a{color:inherit;text-underline-offset:4px}button{cursor:pointer}button:disabled{opacity:.5;cursor:not-allowed}[hidden]{display:none!important}:focus-visible{outline:2px solid var(--accent);outline-offset:4px}.shell{max-width:1280px;margin:auto;padding:0 52px}.masthead{display:flex;align-items:center;justify-content:space-between;padding:29px 0;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:12px;font-size:16px;font-weight:600;letter-spacing:1.5px;text-decoration:none}.brand-divider{color:var(--accent-soft);font-weight:400;margin:0 5px}.home-link{font-size:12px;color:var(--muted);text-decoration:none}.home-link:hover{color:var(--text)}.home-link span{margin-left:12px}.hero{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(340px,.85fr);gap:90px;padding:78px 0 74px;align-items:start}.eyebrow{font-size:10px;letter-spacing:2.8px;color:var(--accent);font-weight:600;margin:0 0 22px}.hero h1{font-family:"Noto Serif SC","Songti SC","SimSun",serif;font-weight:500;font-size:clamp(28px,3.2vw,44px);line-height:1.65;letter-spacing:2px;margin:0 0 25px}.intro{color:var(--muted);font-size:14px;line-height:2.1;max-width:480px;margin:0}.facts{display:flex;gap:36px;margin:34px 0 36px}.facts div{display:grid;gap:2px}.facts strong{font-weight:400;font-size:30px;letter-spacing:1px}.facts strong span{font-size:12px;margin-left:5px;color:var(--muted)}.facts small{font-size:10px;color:var(--muted);letter-spacing:.5px}.mode-note{display:flex;gap:13px;max-width:485px;border-top:1px solid var(--line);padding-top:23px}.note-mark{color:var(--accent);font-size:24px}.mode-note p{font-size:12px;line-height:1.95;color:var(--muted);margin:0}.mode-note strong{color:var(--text);font-weight:500}.mode-note em{font-style:normal;color:var(--accent)}.input-card{background:linear-gradient(145deg,#1a2836,#131d29);padding:27px 30px 21px;border:1px solid #334254;border-radius:14px;box-shadow:0 20px 60px #0002}.card-top{display:flex;justify-content:space-between;align-items:center;gap:12px}.step{font-size:10px;letter-spacing:2px;color:var(--accent)}.state{font-size:10px;color:var(--muted);white-space:nowrap}.state::before{content:"";display:inline-block;width:5px;height:5px;background:var(--muted);border-radius:50%;margin-right:7px}.state.ready{color:var(--green)}.state.ready::before{background:var(--green)}.input-card h2{font-size:24px;letter-spacing:1px;font-weight:500;margin:21px 0 4px}.form-help{font-size:12px;color:var(--muted);margin:0 0 23px}fieldset{border:0;padding:0;margin:0;min-width:0}label{display:block;font-size:12px;margin:0 0 8px;color:#d6dce2}input:not([type=checkbox]),select{width:100%;min-height:45px;border:1px solid #3b4959;background:#0f1924;border-radius:6px;color:var(--text);padding:10px 12px;outline-offset:2px;min-width:0}input:focus,select:focus{border-color:var(--accent)}input::placeholder{font-size:12px;color:#8494a6}.field-hint{display:block;color:var(--muted);font-size:10px;line-height:1.9;margin:7px 0 17px}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}.consent{display:flex;gap:9px;align-items:flex-start;font-size:10px;line-height:1.95;color:var(--muted);margin:22px 0 18px;cursor:pointer}.consent input{width:14px;height:14px;accent-color:var(--accent);margin:4px 0 0;flex:none}.primary{display:flex;align-items:center;justify-content:space-between;gap:12px;width:100%;border:1px solid var(--accent);border-radius:6px;background:var(--accent);color:#18202a;padding:11px 16px;font-size:13px;font-weight:600;letter-spacing:2px;transition:background .15s}.primary:hover:not(:disabled){background:#edd3a3}.form-status{font-size:11px;margin:10px 0 0;min-height:0;color:var(--green)}.form-status:empty{display:none}.form-status.error{color:var(--danger)}.privacy{font-size:9px;color:#9ca9b8;margin:17px 0 0;text-align:center}.results{border-top:1px solid var(--line);padding:42px 0;scroll-margin-top:25px}.results-top{display:flex;justify-content:space-between;align-items:center;gap:20px}.results-top .eyebrow{margin-bottom:8px}.results-top h2{font-size:25px;font-weight:500;letter-spacing:1px;margin:0 0 6px}.muted{color:var(--muted);font-size:12px}.secondary{background:transparent;color:var(--accent);border:1px solid #53606c;border-radius:6px;padding:10px 17px;font-size:12px;white-space:nowrap}.secondary:hover:not(:disabled){background:#d9bd870b;border-color:var(--accent)}.reading-notice{border-left:2px solid var(--accent-soft);padding:10px 16px;background:#d9bd8706;color:var(--muted);font-size:12px;margin:23px 0 29px}.reading-layout{display:grid;grid-template-columns:150px minmax(0,1fr);gap:34px;align-items:start}.topic-tabs{display:flex;flex-direction:column;gap:4px;position:sticky;top:20px}.topic-tabs button{border:1px solid transparent;border-radius:5px;background:transparent;color:var(--muted);text-align:left;padding:9px 12px;font-size:12px;white-space:nowrap}.topic-tabs button span{font-size:10px;opacity:.55;margin-right:17px;font-variant-numeric:tabular-nums}.topic-tabs button[aria-selected=true]{background:#d9bd8710;color:var(--accent);border-color:#d9bd8724}.topic-tabs button:hover{background:#ffffff06}.topic-panel{background:var(--panel-soft);border:1px solid var(--line);border-radius:10px;padding:31px 35px;min-width:0}.topic-heading{display:flex;gap:17px;align-items:center;padding-bottom:21px;border-bottom:1px solid var(--line)}.topic-number{font-size:33px;color:var(--accent-soft);font-weight:300}.topic-heading .eyebrow{font-size:10px;margin:0 0 4px;letter-spacing:1px;color:var(--muted)}.topic-heading h2{font-weight:500;font-size:24px;margin:0}.source-badge{margin-left:auto;font-size:9px;padding:4px 8px;border:1px solid #394352;border-radius:4px;color:var(--muted)}.topic-summary{padding:23px 0 18px}.topic-summary small{font-size:10px;color:var(--accent);letter-spacing:1px}.topic-summary p{font-family:"Noto Serif SC","Songti SC",serif;font-size:19px;line-height:1.95;margin:9px 0 0;color:#e5d4b6}.topic-notices{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 23px}.topic-notices span{font-size:10px;background:#ffffff05;border:1px solid #324052;color:var(--muted);padding:4px 9px;border-radius:4px}.prose{font-size:13px;line-height:2;color:#c7d0d9;overflow-wrap:anywhere}.prose h3{font-size:15px;font-weight:500;color:var(--accent);letter-spacing:.5px;margin:26px 0 11px}.prose h4{font-size:13px;color:var(--text)}.prose strong{color:#e4e7e7;font-weight:600}.prose p{margin:0 0 17px}.prose pre{white-space:pre-wrap;font-size:11px;line-height:1.8;background:#0002;border:1px solid var(--line);padding:13px;border-radius:5px}.guide-box,.source-details{border-top:1px solid var(--line);margin-top:26px;padding-top:15px}summary{cursor:pointer;font-size:12px;color:var(--text)}.guide-box summary span{float:right;color:var(--accent-soft);font-size:10px}.guide-box>div{margin-top:15px}.source-details p{font-size:10px;color:var(--muted);overflow-wrap:anywhere}.evidence-box{margin:35px 0 0 184px;border:1px solid var(--line);border-radius:10px;padding:25px 30px}.evidence-box .eyebrow{margin:0 0 8px;font-size:9px}.evidence-box h2{font-size:19px;font-weight:500;margin:0}.search-row{display:flex;gap:10px;margin-top:21px}.search-row input{flex:1}.evidence-result{border-top:1px solid var(--line);padding:15px 0}.evidence-result summary{font-size:11px;overflow-wrap:anywhere}.evidence-result .prose{margin-top:15px}.evidence-result h4{font-size:12px;color:var(--accent)}.about-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:45px;border-top:1px solid var(--line);padding:36px 0 30px}.small-index{font-family:Georgia,serif;font-style:italic;color:var(--accent-soft);font-size:17px}.about-grid h3{font-size:13px;font-weight:500;letter-spacing:.5px;margin:10px 0 9px}.about-grid p{font-size:11px;color:var(--muted);line-height:2;margin:0}footer{border-top:1px solid var(--line);padding:28px 0 40px;display:flex;gap:40px;align-items:flex-start;justify-content:space-between}.footer-brand{font-size:11px;letter-spacing:1px;min-width:210px}.footer-brand span{display:block;font-size:9px;letter-spacing:0;color:var(--muted);margin-top:7px}footer p{font-size:9px;color:var(--muted);line-height:2;max-width:560px;margin:0}.skip{position:absolute;left:15px;top:-60px;z-index:10;background:var(--accent);color:var(--bg);padding:8px 13px}.skip:focus{top:10px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@media(max-width:1000px){.shell{padding:0 32px}.hero{gap:38px;grid-template-columns:minmax(0,1fr) minmax(315px,.9fr);padding:53px 0}.hero h1{font-size:31px;letter-spacing:1px}.facts{gap:23px}.input-card{padding:25px}.reading-layout{grid-template-columns:120px minmax(0,1fr);gap:20px}.topic-tabs button{padding:8px}.topic-tabs button span{margin-right:10px}.topic-panel{padding:25px}.evidence-box{margin-left:140px}.source-badge{display:none}.about-grid{gap:27px}}
@media(max-width:720px){.shell{padding:0 21px}.masthead{padding:21px 0}.brand{font-size:13px;gap:8px;letter-spacing:1px}.brand img{width:30px;height:30px}.home-link{font-size:10px}.hero{display:block;padding:38px 0}.hero .eyebrow{font-size:8px;letter-spacing:2px;margin-bottom:18px}.hero h1{font-size:29px;line-height:1.65}.intro{font-size:12px}.facts{gap:36px;margin:23px 0}.facts strong{font-size:26px}.facts small{font-size:9px}.mode-note{margin-bottom:29px;padding-top:18px}.mode-note p{font-size:11px}.input-card{padding:24px;border-radius:10px}.privacy{font-size:9px}.results{padding-top:28px}.results-top{align-items:flex-start;flex-direction:column;gap:8px}.results-top h2{font-size:23px}.results-top .secondary{padding:8px 12px}.reading-notice{margin-top:19px;font-size:11px}.reading-layout{display:block}.topic-tabs{flex-direction:row;position:static;overflow-x:auto;gap:5px;padding:4px 2px 13px;margin-bottom:12px;scrollbar-width:thin}.topic-tabs button{padding:8px 10px;font-size:12px}.topic-tabs button span{margin-right:6px}.topic-panel{padding:21px 19px}.topic-heading{gap:13px}.topic-summary p{font-size:17px}.prose{font-size:12px}.prose h3{font-size:14px}.topic-notices span{font-size:9px}.guide-box summary{font-size:11px}.guide-box summary span{font-size:9px}.evidence-box{margin:22px 0 0;padding:22px 19px}.search-row{gap:8px}.search-row .secondary{padding:8px 11px}.search-row input{font-size:12px;padding:10px}.about-grid{grid-template-columns:1fr;gap:23px;padding:28px 0}.about-grid>div{display:grid;grid-template-columns:28px 1fr;column-gap:10px}.small-index{grid-row:span 2}.about-grid h3{margin:0 0 7px}.about-grid p{grid-column:2}footer{display:block;padding:24px 0 30px}.footer-brand{margin-bottom:17px}footer p{font-size:9px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}
@media print{body{background:#fff;color:#111}.shell{max-width:none;padding:0}.masthead,.hero,.topic-tabs,.evidence-box,.about-grid,.results{border:0}.reading-layout{display:block}.topic-panel{background:#fff;border:0;padding:0}.prose,.prose strong,.topic-summary p,.topic-heading h2,.muted{color:#222}.source-details,.guide-box{display:none}footer{display:block;color:#222}}
.ai-box{margin-top:28px;border:1px solid #3a4655;border-radius:8px;padding:20px 22px;background:#d9bd8705}.ai-head{display:flex;justify-content:space-between;align-items:center;gap:12px}.ai-head .eyebrow{margin:0}.ai-model{font-size:10px;color:var(--muted)}.ai-box h3{font-size:15px;font-weight:500;margin:8px 0 4px}.ai-box form{margin-top:14px}.ai-box .consent{margin:12px 0}.ai-status{margin:10px 0 0}.ai-status:empty{display:none}.ai-status.error{color:var(--danger)}.ai-output{border-top:1px solid var(--line);margin-top:14px;padding-top:6px}.ai-health{margin-top:24px}
@media(max-width:720px){.ai-box{padding:17px 15px}}
.date-wrap{position:relative}.date-field{display:flex;align-items:stretch;border:1px solid #3b4959;background:#0f1924;border-radius:8px;min-height:56px;transition:border-color .15s}.date-field:focus-within,.date-wrap.open .date-field{border-color:var(--accent)}.date-wrap.invalid .date-field{border-color:var(--danger)}.date-seg{flex:1;display:flex;align-items:center;justify-content:center;gap:7px;position:relative;cursor:text;padding:0 8px}.seg-year{flex:1.4}.date-seg+.date-seg::before{content:"";position:absolute;left:0;top:15px;bottom:15px;width:1px;background:var(--line)}.date-seg.active::after{content:"";position:absolute;left:28%;right:28%;bottom:7px;height:2px;border-radius:2px;background:var(--accent)}.date-seg input{border:0;background:transparent;min-height:0;padding:12px 0;width:2.3ch;text-align:center;font-size:20px;letter-spacing:1px;font-variant-numeric:tabular-nums;color:var(--text);border-radius:0}.seg-year input{width:4.4ch}.date-seg input:focus-visible{outline:none}.date-seg input::placeholder{font-size:20px;color:#4a596a}.date-seg span{font-size:12px;color:var(--muted);user-select:none}.date-seg input[aria-invalid=true]{color:var(--danger)}
.date-picker{position:absolute;z-index:6;left:0;right:0;top:calc(100% + 8px);background:#111b26;border:1px solid #334254;border-radius:10px;box-shadow:0 18px 48px #0008;padding:12px 12px 10px;animation:picker-in .14s ease-out}@keyframes picker-in{from{opacity:0;transform:translateY(-4px)}}.picker-head{display:flex;justify-content:space-between;gap:12px;font-size:11px;letter-spacing:1px;color:var(--muted);padding:0 4px 9px;margin-bottom:8px;border-bottom:1px solid var(--line)}#picker-title{color:var(--accent)}.picker-grid{display:grid;gap:4px;max-height:214px;overflow-y:auto;position:relative;scrollbar-width:thin;scrollbar-color:#334254 transparent}.picker-grid.cols-5{grid-template-columns:repeat(5,1fr)}.picker-grid.cols-4{grid-template-columns:repeat(4,1fr)}.picker-grid.cols-7{grid-template-columns:repeat(7,1fr)}.picker-grid button{border:1px solid transparent;background:transparent;color:#cfd6dd;border-radius:6px;padding:7px 0;font-size:13px;font-variant-numeric:tabular-nums;transition:background .12s}.picker-grid button:hover:not(:disabled){background:#ffffff0a;border-color:#3b4959}.picker-grid button.selected{background:var(--accent);border-color:var(--accent);color:#18202a;font-weight:600}.picker-grid button:disabled{opacity:.25}.picker-empty{grid-column:1/-1;margin:14px 0;text-align:center;font-size:12px;color:var(--muted)}.field-error{display:block;margin:8px 0 0;font-size:11px;line-height:1.7;color:var(--danger)}
@media(max-width:720px){.date-seg input,.date-seg input::placeholder{font-size:18px}.picker-grid button{padding:9px 0}}